Analysis
- max time kernel
147s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
27/05/2024, 19:12
General
- Target 2024-05-27_5431597585f1316e230e89fecf035941_cryptolocker.exe
- Size 48KB
- Sample240527-xwkdpsfg74
- SHA256 9daf4b627a7bce014a9a6a136eae61b9f3ca3adce5a5e65d34b00a2fb66fb7ce
Score
9/10
Malware Config
Signatures
- Detection of CryptoLocker Variants 5 IoCs
- Detection of Cryptolocker Samples 5 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-05-27_5431597585f1316e230e89fecf035941_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-27_5431597585f1316e230e89fecf035941_cryptolocker.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\asih.exe"C:\Users\Admin\AppData\Local\Temp\asih.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
asih.exe
memory/2224-0-0x0000000000500000-0x000000000050B000-memory.dmp
memory/2224-1-0x0000000000520000-0x0000000000526000-memory.dmp
memory/2224-2-0x0000000000640000-0x0000000000646000-memory.dmp
memory/2224-9-0x0000000000520000-0x0000000000526000-memory.dmp
memory/2224-17-0x0000000000500000-0x000000000050B000-memory.dmp
memory/3828-18-0x0000000000500000-0x000000000050B000-memory.dmp
memory/3828-20-0x00000000005E0000-0x00000000005E6000-memory.dmp
memory/3828-26-0x00000000004E0000-0x00000000004E6000-memory.dmp
memory/3828-27-0x0000000000500000-0x000000000050B000-memory.dmp